First of all i am not able to restore control file from tape..it will not possible to restore database rt..!

@Maran

My backup team is already raised an sev 1 case with EMC.. twice i had a webex with EMC..they are also not able to figure out the issue...they are taking too much time..till now they didn't come up with the solution..!

There would be sbtio.log file in the trace folder. Can you post the output? that will provide some information on what exactly is happeneing

One more thing you need to consider.

Dont restore with the same catalog database. Restore the catalog to another database and connect the Test Server to connect to the new catalog databaase. This will make sure you dont mess up the catalog DB.

It took long time for me as well

1.Add the PROD IP to the testserver
2. Add the testservet to the Networker global index
3. Add the test server Oracle user to the networker users.

I alredy created pfile from spfile from my production server and i did some changes in pfile like instance name with TEST1 instead of actuall production instance name and kept in dbs location in test server and

export ORACLE_SID=TEST1

so i am able to go to nomount state by using pfile..and tried to restore to control file from tape it's worked and that control file is directly copied to both the diskgroup's--DATADG001 and FRA diskgroup,and updated with new control file name in pfile and tried to keep database in mount stage it worked.

If this DISKGROUP is exclusive from DATABASE restored and you have sure that files on it are obsolete you can DROP DATADG001 and Recreate it (because it change only header of ASMDISK and take seconds) that is more fast than delete all files (with rm command) which suffer I/O operation (can take hours).

If DISKGROUP is not exclusive then you must manually delete all files that are obsolete or from previous attempts of restore.

I delete all file from DATADG001 diskgroup, now my diskgroup size is 15.95 TB that will be enough for restoring my last sunday backup but i listed the controlfile it's show from last 27th Mar onwards..

so it's may trying to restore from 27th mar onwards..how to delete old control file in list and only to keep for last sunday i.e 7th April 2013.

Oracle will restore the file required to satisfy the SET UNTIL time that you specify --- it will not needlessly restore older files.
So, if your SET UNTIL TIME clause specifies '07-APR-13', it would restore the 06-Apr controlfile and database files but not the 05-Apr and older files.
(If there was no backup on 06-Apr, it would restore the newest backup on or before 06-Apr and not any older backups).